Lining for shafts.



W. T. MCOARTHY. LINING PoR SHAFTS. APPLICATION FILED JAN. 24, 1011. LQQS/Q Patened Nw. 14, 1911.

4 SHEETS-SHEET l.

WMP/V56 Es W @L @MQ W. T. MGCARTHY. LINING PoR SHAFTS.

APPLICATION FILED JAN. 24, 1911. 1,008,727'.

Patented NOV. 14, 1911.

4 SHEETS*SHEET 2.

CLQNQ WMM MM( l W. T. MGGARTHY.

LINING FOR SHAFTS.

APPLICATION FILED JAN. 24, 1911. LQQQF'YQYB n Patented Nov. 14,1911.

4 SHEETS-SHEET 3.

a 1-11 L A /LE/S 3 @im Y "Syim W. T. MGARTHY.

I l, A 1,008,727, JAN 2 lm Patented N0v.14,1911.

v4 SEETS-SHBE .To all whom t 'may concern:

` WILLIAM T. MGGARTI-IY,

LINING FOIt SI-IAFIS.y

Specification of Letters Patent.

or onosnv, MINNESOTA.

Patented Nov. 14, 191i.

` Application filed January 24, 1911. Serial UNO. 604,498.

,'Be it known that I, TILLIAM T. McGim- THY, of Crosby, Crow `Wing county, Minnesota, have invented 'certainA new and useful Improvements in Linings for Shafts, of which the following is a specification.

My invention relates to Walls or linings for mining shafts orexcavaftions ot' a simi-v lar nature and the object of the invention is to provide a lining which can be driven into the ground to the desired depth and then the mater iilosed by the lining removed by any suitable means.

A further object is to provide a shaft lining which can be sunlsY into the ground with comparatively little effortand expense and which will securely hold the earth against caving in when the shaft has been completed. Other objects of the invention will appear from the following detailed description.

The invention consists generally in uprights having their lower ends seated 'Within sockets in the bed-rock, lining plates driven down outside the uprights and supported thereby, with means for bracing the uprights against inward collapse.

Further the invention consists in various constructions and combinations, all as hereinafter described and particularly pointed out in the claiiu In the'acconnianying drawings forming part ot this specification, Figure l is a horizontal sectional vienT of a shaft and lining constructed in accordance with niy invention, Fig. Q fr a vv*frtitvil sectional view illustratiug the manner dot driving the pipes into the soil to sink them to the required depth,

Fig; 3 is asimilar view, illustrating the manner of forming .the socketsy in the bedrock, into which theLlovver ends oi the pipes are inserted. Fig. 4 is a detail view showing the manner of securing the lining platesv together.

In'the drawing, represents a series ofi upright pipes of suitable diameter, prefer ably six inches, 'which are driven into the lsoil by means of a pile driver in the usual manner. The pipes are suitably spaced apart and as here shown are 'driven to form a rectangular shaped shaft, though it may be circular inform, if preferred. These pipesA are driven to the desired depth, which will vary according to the character of the strata Where the shaft is being sunliand when the pipes contalct with the bed-rock adrill 3 is inserted through the drilled in the rock. The drill is then removed and a smaller pipe 4, say four-inches until it rests on the bottom of the socket drilled in the rock. The outer pipe may then be removed. In place of the pipe 4 'a rod may be used, or any other suitable upright. When the pipes have all been put in place a suitable distance apart, the sheets 5- and 6 `forming, respectively,the -`end and side Walls of the shaft, are placed. on edge on the ground against the pipes 'and driven edgewise into the soil, the plates being usually six o-rseven feet wide and of suitable length, according to the diameter of the the tivo are riveted'or bolted together and the driving operation is continued until the bottom-ot the shaft is reached', each plate being secured to the one above it and all of them being preferably composed of boiler plates which will be sufficiently strong and rigid to resist lateral pressure of the ground around the shaft. The plates Willcontact with the pipes on one side and be guided thereby as they are forced down into the groundA and it necessary during the operation of sinking the plates, a stream of Water may be directed below them to soften the soil or gravel so. that the plates will sink easily through it. I may also provide loops 7 attached to the plates and passing aroun pipe l and a socket in diameter', is lowered Within the pipe2 shaft. When one plate has been sunk until deo the pipes so that theplates Will be held in I in place theearth inclosedis removed and as tast as' it is removed I may timber the shaft,

Then the pipes and the lining have been put lproviding beams 9 and 10 pinned together at A the corners and having notches l1 and 12 to receive the pipes. These beams are placedl .at suitablev intervals in the excavation of the shaft and are preferably vadditionally supported by rods 13 which are suspended from cross timbers 14 at the top' of the shaft.

I do not Wish to confine myself to. any particular depth of the shaft or .they shape of the t same in 'cross section, as it may be rectangw" larwcironlar or polygonal, as desired, and oi any suitable' cross sectional area, according to the purpose for whielrthe excavation is to he used.

l, elai'nnas my invention l. ,A shaft lining` comprising a series or" pipes vertically arranged having their lower ends seated in sockets formed -in the hed-rock, lining plates driven Adown between said pipes and the earth inelosing them and hraeodnnd slipported on their inner side by pipes, and means tor lnilding` said pipes against inward 'collapse when the shaft is excavated.

It `shaft lining eon'iprising a series oit vert" :ally arranged pipes having their lower ends fitting` within sockets drilled in the hed roelr, lining` plates having loops inelosing said pipes and guided. thereby and driven down opposite said pipes and between tliein .and the earth on the outer side of'said pipes,

up-rigits, and means for bracing said up rights and holding theni in an upright position when the earth is removed to torni the shaft. I

,fi shaft lining comprising a series oi upright pipes driven into the ground, plates arranged edgewise and also driven into the ground and 'tr-mining .the outer Wall. of the shaft and inelosing said pipes and supported by said pipes against the lateral pressure of the earth, tinihersinter iosed between said pip-es as the earth is excavated -to forni moana" the shaft, and means supporting said timbers at intervalsin the shaft.

5. A shaft AComprising a series of pipes driven in an upright position into the y ground, lining plates arranged edgewise, one

upon another, and also driven into the. ground on the outer side of said pipes, angle plates lapping hy the abutting ends of said wall plates at the lcorners and supported with saidwall plates by said pipes aga-inst inward pressure of the earth, and means :tor braoingr said pipes against inward collapse when the earth inelosed hy said Wall plates isreinoved to torna the shaft.

(i. A shaft lining comprising a series oi. upriglitshaving their lower ends driven into the ground, lining plates driven down between said uprights and the earth inolosing thena and braced and supported by said uprights, and means for holding said uprights against inward collapse when the shaft is excavated.

7. j\,'eliaft lining Comprising a series of upriglits, vertically arranged, lining plates placed edgewise, one upon another, and driven successively into the soil outside said uprights, said lining plates forming, when driven to the bottom of the shaft, an iniperforate. Wall surrounding said uprights.

8. Ashaft lining comprising a series of uprights driven into the ground, lining plates arranged edgewise, one upon another, and also driven into the ground on the outer side of said uprights, and angle plates lapping hy the abutting ends ot said lining plates at the corners` and supported thereby against inward pressure.

ln witness whereof, I have hereunto set my hand this 20th day of January, 1911.

WILLIAM T. MCCARTHY.

lNitnesses:

GENEVIEVE E. SonnNsnN, EDWARD A. PAUL. 

